Unit 2: Quiz #1 (Add/Sub Integer Rules)

A negative number plus a negative number equals a _______number.

• positive

• negative

Tags

CCSS.7.NS.A.1C

A positive number plus a positive number equal a _______number.

• positive

• negative

Tags

CCSS.7.NS.A.1C

adding integers with DIFFERENT signs

• subtract and keep the sign of the integer with the larger number

• add their absolute value and keep the sign of the integers

• change subtraction sign (between the integers) to an addition sign and change the sign of the integer following it to its opposite (if it was positive, make it negative; if it was negative, make it positive); then solve

adding integers with the SAME sign

• add and keep the sign

• subtract their absolute value; keep the sign of the integer with the higher absolute value

• change subtraction sign (between the integers) to an addition sign and change the sign of the integer following it to its opposite (if it was positive, make it negative; if it was negative, make it positive); then solve

 2 - (- 2).... it is the same as 

• 2 - 2
• 2 + 2
• 2 + -2
• 2 - +2

Tags

CCSS.7.NS.A.1C

Negative + Negative = ??

• Positive
• Negative
• It Depends

Tags

CCSS.7.NS.A.1C

Positive + Positive = ??

• Positive
• Negative
• It Depends

Tags

CCSS.7.NS.A.1C

When you add -2 - 3

• you add 2 and 3 and get negative answer
• you subtract 2 from 3 and get negative answer
• you subtract 3 from 2 and get negative answer
• you add 2 and 3 and get positive answer

Tags

CCSS.7.NS.A.1C

When you subtract -2 - (- 3)

• you add 2 and 3 and get negative answer
• you subtract 2 from 3 and get positive answer
• you subtract 2 from 3 and get negative answer
• you add 2 and 3 and get positive answer

Tags

CCSS.7.NS.A.1C

-21 + 14

• positive
• negative

Tags

CCSS.7.NS.A.1C